Manifestações patológicas em uma edificação com lajes protendidas – um estudo de caso: parte I – análise da estrutura.

Almir Barros da S. Santos Neto; André  Lübeck; Paulo Jorge Sarkis; Jorge Martins Sarkis

doi:10.21041/ra.v15i2.738

Pathological manifestations in a prestressed concrete flat slab building - a case study: part I - structure analysis.

Almir Barros da S. Santos Neto Programa de Pós-Graduação em Arquitetura, Urbanismo e Paisagismo, Universidade Federal de Santa Maria
André Lübeck Programa de Pós-Graduação em Engenharia Civil, Universidade Federal de Santa Maria
Paulo Jorge Sarkis Sarkis Engenharia Estrutural, Santa Maria, Rio Grande do Sul
Jorge Martins Sarkis Sarkis Engenharia Estrutural, Santa Maria, Rio Grande do Sul

DOI: https://doi.org/10.21041/ra.v15i2.738

Keywords: prestressed concrete flat slab, unbonded tendons, non-adherent post-tensioning, pathological manifestations in concrete structures

Abstract

Prestressed concrete flat slabs with unbonded tendons are widely used in Brazil due to their advantages. However, the bold achieved with the use of prestressed buildings often results in highly complex projects and non-trivial considerations in the engineer's daily work. This work aims to present a case study of a commercial building constructed in Rio Grande do Sul, consisting of prestressed concrete flat slabs with unbonded tendons, where pathological manifestations occurred even during the construction phase, such as excessive deflections, cracks in the prestressed slabs, and some partial ruptures of structural elements. The work presents the pathological manifestations at the building and the structural analysis, as well as a succinct presentation of the reinforcement techniques used.

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Published

2025-05-01

How to Cite

Barros da S. Santos Neto, A., Lübeck, A., Sarkis, P. J., & Sarkis, J. M. (2025). Pathological manifestations in a prestressed concrete flat slab building - a case study: part I - structure analysis. Revista ALCONPAT, 15(2), 123–140. https://doi.org/10.21041/ra.v15i2.738

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Issue

Vol. 15 No. 2 (2025): Volume 15, Issue 2 (2025)

Section

Basic Research

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